/*

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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")

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*

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* This Source Code Form is subject to the terms of the Mozilla Public

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* License, v. 2.0. If a copy of the MPL was not distributed with this

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* file, you can obtain one at https://mozilla.org/MPL/2.0/.

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*

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* See the COPYRIGHT file distributed with this work for additional

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* information regarding copyright ownership.

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*/

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#ifndef DNS_TIME_H

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#define DNS_TIME_H 1

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/*! \file dns/time.h */

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/***

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*** Imports

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***/

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#include <inttypes.h>

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#include <isc/buffer.h>

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#include <isc/lang.h>

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ISC_LANG_BEGINDECLS

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/***

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*** Functions

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***/

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isc_result_t

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dns_time64_fromtext(const char *source, int64_t *target);

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/*%<

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* Convert a date and time in YYYYMMDDHHMMSS text format at 'source'

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* into to a 64-bit count of seconds since Jan 1 1970 0:00 GMT.

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* Store the count at 'target'.

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*/

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isc_result_t

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dns_time32_fromtext(const char *source, uint32_t *target);

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/*%<

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* Like dns_time64_fromtext, but returns the second count modulo 2^32

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* as per RFC2535.

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*/

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isc_result_t

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dns_time64_totext(int64_t value, isc_buffer_t *target);

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/*%<

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* Convert a 64-bit count of seconds since Jan 1 1970 0:00 GMT into

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* a YYYYMMDDHHMMSS text representation and append it to 'target'.

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*/

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isc_result_t

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dns_time32_totext(uint32_t value, isc_buffer_t *target);

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/*%<

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* Like dns_time64_totext, but for a 32-bit cyclic time value.

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* Of those dates whose counts of seconds since Jan 1 1970 0:00 GMT

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* are congruent with 'value' modulo 2^32, the one closest to the

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* current date is chosen.

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*/

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int64_t

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dns_time64_from32(uint32_t value);

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/*%<

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* Covert a 32-bit cyclic time value into a 64 bit time stamp.

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*/

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ISC_LANG_ENDDECLS

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#endif /* DNS_TIME_H */

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